Based on this product's specifications, here are some alternatives and similar models
Battery for Samsung Galaxy Tab S 10.5 EB-BT800FBE — Li-Polymer 7900 mAh
Summary description:
Replacement Li-Polymer battery designed for Samsung Galaxy Tab S 10.5, model EB-BT800FBE, with a capacity of 7900 mAh. Intended for restoring device runtime and replacing worn or faulty original batteries. Suitable for repairs and DIY replacements in tablets of the specified model, providing longer usage between charges and stable power delivery.